Two routing bugs were keeping the SLM out of every real prompt and,
once it was eligible, pulling complex tasks into it as well.
Bug 1: ForceArm was called unconditionally when a primary provider was
configured (cmd/gnoma/main.go:378). That short-circuited the entire
router — every prompt went straight to whatever was set as
[provider].default, regardless of tier, score, or feasibility. The SLM
arm appeared in `gnoma router stats` registration logs but had zero
observations after dozens of prompts.
Fix: only pin when the user passed --provider on the command line.
Config defaults register the arm but don't force it; the router picks
freely. Verified end-to-end — trivial prompts now reach slm/ollama
via the tier-0 priority.
Bug 2: A short prompt like "refactor the SLM module" classifies as
TaskRefactor with complexity 0.015 — well under the SLM arm's 0.3
ceiling. The arm became eligible despite the task being inherently
non-trivial. Once eligible, tier-0 priority then pulled it in over
the CLI agents.
Fix: add MinComplexityForType, applied in both ClassifyTask
(heuristic path) and slm.Classifier.Classify (SLM-overlay path). The
floor is per-task-type:
- TaskSecurityReview, TaskOrchestration → 0.60
- TaskRefactor, TaskPlanning, TaskDebug → 0.40
- TaskUnitTest, TaskReview → 0.35
Tasks like Explain/Generation/Boilerplate keep their organic
complexity score so trivial knowledge prompts (≤0.15) still fall to
the SLM. Tasks that imply existing code or multi-step reasoning are
clamped above the SLM's MaxComplexity, naturally routing them to a
bigger arm.
After both fixes, observed routing in a clean run:
What is 2+2? → slm/ollama (complexity 0.015)
Define a closure → slm/ollama (complexity 0.015)
What is HTTP? → slm/ollama (complexity 0.015)
Refactor the SLM module → subprocess/gemini (complexity 0.40)
Audit for race conditions → subprocess/gemini (complexity 0.35)
Plan a migration → subprocess/gemini (complexity 0.40)
vikingowl
eb0583f606